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Intel
IntelBX80646I74790
▲ 534,812 ▼

2 Cores, 2 Threads @3.0GHz, Core.
Release date: Q1 2008.

VS
▲ 618,671 ▼

4 Cores, 8 Threads @3.6GHz, Haswell.
Release date: Q2 2014.

Effective Speed 
+77%
Real World Speed
Performance profile from 323,567 user samples
Benchmark your CPU here
68,540 User Benchmarks
Best Bench: 47% Base clock 3 GHz, turbo 2.95 GHz (avg)
Worst Bench: 24% Base clock 3 GHz, turbo 2.7 GHz (avg)
Poor: 24% Great: 47%
SPEED RANK: 1085th / 1468
Gaming
Gaming 40%
Speed boat
Desktop
Desktop 46%
Yacht
Workstation
Workstation 27%
Raft
255,027 User Benchmarks
Best Bench: 80% Base clock 3.6 GHz, turbo 4 GHz (avg)
Worst Bench: 58% Base clock 3.6 GHz, turbo 1.5 GHz (avg)
Poor: 58% Great: 80%
SPEED RANK: 391st / 1468
Gaming
Gaming 71%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed 		40.3 % 71.4 % Much faster effective speed.
+77%
Average Score 
+231%
Memory
Avg. Memory Latency 		67.9 Pts 82.6 Pts Lower memory latency.
+22%
1-Core
Avg. Single Core Speed 		41.2 Pts 98.4 Pts Hugely faster single-core speed.
+139%
2-Core
Avg. Dual Core Speed 		73.8 Pts 187 Pts Hugely faster dual-core speed.
+153%
4-Core
Avg. Quad Core Speed 		76.9 Pts 327 Pts Hugely faster quad-core speed.
+325%
8-Core
Avg. Octa Core Speed 		78.1 Pts 482 Pts Hugely faster octa-core speed.
+517%
Overclocked Score 
+208%
Memory
OC Memory Latency 		78.9 Pts 93.6 Pts Lower OC memory latency.
+19%
1-Core
OC Single Core Speed 		48.1 Pts 109 Pts Hugely faster OC single-core speed.
+127%
2-Core
OC Dual Core Speed 		95.5 Pts 214 Pts Hugely faster OC dual-core speed.
+124%
4-Core
OC Quad Core Speed 		95.4 Pts 377 Pts Hugely faster OC quad-core speed.
+295%
8-Core
OC Octa Core Speed 		95.4 Pts 551 Pts Hugely faster OC octa-core speed.
+478%
Value & Sentiment 
+703%
Market Share
Based on 69,033,757 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.58 % Insanely higher market share.
+2,800%
Value
Value For Money 		63.5 % 93.6 % Much better value.
+47%
User Rating
UBM User Rating 		53 % 61 % More popular.
+15%
Price
Price (score) 		$53 Much cheaper.
+49% 		$104
Nice To Haves 
+177%
Age
Newest 		202 Months 126 Months Much more recent.
+38%
TDP
Thermal Design Power (TDP) 		130 Watts 84 Watts Much more energy efficient.
+35%
Cores
CPU Processing Cores 		2 cores 4 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads 		2 threads 8 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process 		45 nm 22 nm Much newer manufacturing.
+51%
Base Clock
Base Clock Speed 		3 GHz 3.6 GHz Faster base frequency.
+20%
Turbo Clock
Turbo Clock Speed 		3 GHz 4 GHz Much faster turbo frequency.
+33%
64-Core
OC Multi Core Speed 		95.4 Pts 556 Pts Hugely faster OC 64-core speed.
+483%
64-Core
Avg. Multi Core Speed 		78 Pts 495 Pts Hugely faster 64-core speed.
+535%
Specifications 
Series
CPU Architecture 		Core Haswell
Socket
Motherboard Socket 		LGA775 FCLGA1150
Graphics
Integrated Graphics 		None HD 4600
Launch Date
Launch Date 		Q1'08 Q2'14
Cache
Cache 		6 MB L2 8 MB SmartCache
Embedded Options Available
Embedded Options Available 		Yes No
Lithography
Lithography 		45 nm 22 nm
Recommended Price
Recommended Customer Price 		$149.00 - $179.00 $303.00 - $312.00
Bus Speed
Bus Speed 		1333 MHz FSB 5 GT/s DMI2
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		No 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		No Yes
AES New Instructions
Intel® AES New Instructions 		No Yes

More specs » More specs »
Conclusion 
Average Bench 40.3%
Average Bench 71.4%

The Intel Core 2 Duo E8400 is amongst the fastest of the Core 2 Duo range of now nearly ten year old CPUs. The E8400 is included in our group tests simply as a reference point due to its huge success back in its day. Running at a clock speed of 3.0 GHz the E8400 has an effective speed of 52 which is 85% slower than its modern day counterparts. The relative lack of performance is especially noticeable in the area of multi-core processing as a consequence of the E8400's relatively few two cores. Anyone considering an upgrade needn't hesitate as modern CPUs are not only orders of magnitude faster but also considerably more energy efficient and feature packed. [Oct '14 CPUPro]

MORE DETAILS

The Core i7-4790 is the third upgrade to Intel's flagship quad core hyper-threaded CPU. This version, like its predecessor the i7-4771, gets a 100 MHz bump in stock frequency and additionally the i7-4790 also gets a 100 MHz turbo frequency bump. These improvements (~4%) are marginal and practically impossible to discern in day to day use. Looking at a benchmark comparison between the 4771 and 4790 verifies that there is little difference between the two CPUs. Although the i7-4790 isn't much of a step forward, it's still one of the best (locked) mainstream processors on the market. AMD hasn't been able to compete with Intel on single threaded performance for several years, consequently Intel have no need to push the envelope. Overclockers should wait for the 4790K which is rumoured to be released shortly. [May '14 CPUPro]

MORE DETAILS

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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